Rounded concave insert



FIG. 1 is a front perspective view of the rounded concave insert.

FIG. 2 is a top perspective view of the rounded concave insert.

FIG. 3 is a side perspective view of the rounded concave insert.

FIG. 4 is a top elevation view of the rounded concave insert; and,

FIG. 5 is a front elevation view of the rounded concave insert. 

CLAIM The ornamental design for a rounded concave insert, as shown and described. 